Improvement in fruit-jars



AMANDA T. IONES.

Fruit-lars.

N0,140,508. Parentedmyma's.

WITNESSES. I NVENTOR.

mafudwffma/ ghodw'egvuy, E 2754!" UNITED STATES PATENT OFFICE AMANDA T. JONES, OF CLINTON, WISCONSIN.

IMPROVEMENT IN FRUIT-JARS.

Specication forming part of Letters Patent No. 140,508, dated July 1, 1873; application filed .Tune 10, 1873. I

To all whom it may concern:

Be it known that I, AMANDA T. J oNEs, of Clinton, in the county of Rock and State of W'isconsin, have invented a new and valuable Improvement in Preserving-Jars; and I do hereby declare that the following is a full, clear, and exact description of the construction andoperation of the same, reference besists in the construction and novel arrangement of two horizontal beads or lian ges of different diameters at the neck of the jar, one above the other, each provided with flattened faces or recesses diametricallyopposite to each other; of a concavo convex cover having within its rim certain swells or cordlike faces adapted to t the ilattened external faces or depressions of the upper flange of the jar; of the cam-like curvatures of the clamping-bar in the portion surrounding the central opening, whereby this portion is raised at the narrower diameters, and depressed as the bar broadens; ofthe internal shelf or ledge within the central opening for the reception of a packingring; of a concave cap-plate adapted to press upon said packin g-ring, and provided with two hooked ends adapted to engage with the cam-curves of the clamping-bar; and in connection with said clamping-bar, and the internal swells of the cover, ot' certain eamlike rises or swells of the convex top, making it higher at points at right angles with said internal swells.

In the accompanying drawings, the letter A designates the upper portion of a jar, having at its neck two horizontal beads or ian ges, B and O, one of smaller diameter than, and lying above, the other, said flanges being each flattened or recessed, respectively, at the points b and c, diametrically opposite each other, as shown in Fig. 2 of the drawings.

a concavo-convex cover provided on the in- Side 0f its rim, at diametrically-opposite points,

D indicatesl with the internal swells or segments a, adapted to tit the faces b of the upper flange of the jar, and thus serving to steady the cover, keeping it from rotating on the jar. The con- "ex top of the vjar is provided with cam-like rises or swells d d at points ninety degrees distant from the internal swells a, for the purpose of tightening the clamping-bar when the latter is engaged with the lower flange C, a-nd turned upon said convex top. The cover is centrally perforated at e and provided with an annular risel or lip, f, surrounding the aperture, and Within it with an internal ledge, g, adapted to receive a packing-ring, h. E represents the clamping-bar, a bent metal plate having an opening, F, in its center, through `which the annular projection or lip f passes,

and hooked` ends G, adapted to engage with the lower flange of the jar. Those portions z ot' the plate on each side of the opening F are curvedroutward and downward, forming cams highest at the smallest diametersyg/ and lowest at the largest diameters xx, adapted to engage with the hooked ends a of the concave capplate H in such a manner that as said capplate is turned on a vertical axis its hooked ends are drawn downward by the cam-curves z, forcibly depressing the plate on the packing-ring h ot' the central opening.

The operation of closing the jar or can is as follows: A large packing-ring, It, having been placed on the upper surface of the lower flange C of the jar, the con vex cover is placed thereon in the only position inv which it will t-that is, with the internal cord-faces in contact with the flattened faces otl the upper flange. The clamping-bar is then placed over the cover, its hooked ends passing readily dow'n by the ila-ttened faces or recesses c ot' the lower ange. It is then turned through an angle of ninety degrees,brin gin g its hooked ends'into engagementwith said lower lla-nge, and its middle portion or body into engagement with the swells or cam-rises of the convex top, thus securing it tightly.

For some purposes this closing is suiiicient, the central aperture F and the cap-plate being dispensed with. In other cases, as when the exhaustion of air forms a part of the preserving process, the central aperture is preferred, and it is closed as follows: The rubber ring or packing having been placed on the interna-l ledge g the cap-plate H With its convexity,

of the bar, and thus gradually depressing the cap-plate until the largest diameter x is ooincident With the position of said hooks. At these points of the curves straight edges n are preferably provided to steady the hooked ends n so that the reacting pressure of the rubber and the elastic plates will not cause the cap-plate to turn back on the cam -curves z and loosen the joint.

What l claim is- I. A secondary Hange, B, above the clampiiangeG,l having the lat faces or recesses b, substantially as specified.

2. A conca-vo-convex cover having the internal segments or swells a Within its rim7 substantially as specified.

3. The annular packing-shelf g within the central opening e, substantially as specified.

4. A clamping-bar, open in its middle portion, and provided with the outward and downward cam-curves z, substantially as specified.

5. A clamping-bar, open in its middle portion, and provided with the outward and downward cam-curves z, terminating in straight edges u, substantially as specified.

6. A cap H, concave in form7 and provided With the downwardly-hooked ends a, substantially as specified.

7. The combination of the double-flanged jar, the concavo-convex and centrally-perfo rated cover, the packings h and k, the clamping-bar E, the cams z, and the hooked capplate H, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my name in the presenceV of tivo Witnesses.

Witnesses: AMANDA T. JONES.

PHIL. G. MASI, GEO. H. MILLER. 

